The modern summer movie season has an official starting gun, and it goes off on the first weekend of May. For two decades, studios have treated that date as the moment the popcorn calendar truly begins — the launch slot reserved for the single film expected to set the tone, and the tentpole revenue, for the months to follow. Who gets to fire that gun, and how completely they dominate when they do, is one of the most telling rituals in the business.
One studio owns the date
The pattern is almost monotonous in its consistency: Marvel. Ever since the original Iron Man detonated on the first weekend of May 2008 and launched a cinematic universe, the studio has claimed this slot again and again — the Avengers films, Captain America entries, Guardians of the Galaxy, Doctor Strange. The first weekend of May became, in effect, Marvel’s private holiday, the date competitors learned to flee rather than challenge. When a studio owns a launch window this thoroughly, rivals stop scheduling against it, which only deepens the domination — a self-reinforcing monopoly on the summer’s opening bell.
| Year | Summer kickoff #1 | Share of the week |
|---|---|---|
| 2025 | Thunderbolts* | 50% |
| 2024 | The Fall Guy | 36% |
| 2023 | Guardians of the Galaxy Vol. 3 | 73% |
| 2022 | Doctor Strange in the Multiverse of Madness | 83% |
| 2021 | Demon Slayer: Kimetsu no Yaiba – The Movie: Mugen Train | 28% |
| 2020 | The Wretched | 74% |
| 2019 | Avengers: Endgame | 72% |
| 2018 | Avengers: Infinity War | 66% |
| 2017 | Guardians of the Galaxy Vol. 2 | 74% |
| 2016 | The Jungle Book | 39% |
| 2015 | Avengers: Age of Ultron | 80% |
| 2014 | The Amazing Spider-Man 2 | 57% |
Why this weekend, specifically
The choice of early May is not arbitrary. It sits just before summer blockbuster gridlock begins — late enough that schools are winding toward break, early enough that the film has the field almost to itself for a week or two before the next giant arrives. A movie that opens here can post an enormous share precisely because the calendar around it is still clear; it is the last moment of open road before the summer traffic jam. That is why so many of the bars on the chart tower into Betelgeuse-event and Geuse territory: these films are engineered to launch into emptiness.
Batmandir · Guest Passes Step inside for a day. Guest passes from $161/day — brought in by a member. See guest passes →The rare years the slot softens are the ones worth watching, because they signal a shift in power. When Marvel stumbled or paused, other contenders slipped into the date — and the share often dropped, because no one else commanded quite the same automatic, competition-clearing awe. The health of the summer kickoff has become a rough barometer for the health of the superhero era itself: a towering May opening means the machine is humming; a soft one hints that the audience’s appetite, or the studio’s pipeline, has thinned.
Whatever fires the gun, the ritual endures. The first weekend of May remains the most reliable domination slot on the calendar — a date studios plan years around, defend fiercely, and use to announce that the season of giants has begun. It is the closest thing the box office has to a national holiday, and for most of the last twenty years, it has worn a cape.
